William Daniels

Superintelligence

KITT (voice)

Girl Meets World

George Feeny · (5 episodes)

Comedy Central Roast of David Hasselhoff

K.I.T.T. (voice)

Blades of Glory

Commissioner Ebbers

The Closer

Andrew Schmidt · (2 episodes)

Grey's Anatomy

Craig Thomas · (5 episodes)

Boston Legal

Milton Brody · (1 episode)

The Lyon's Den

(1 episode)

Comedy Central Roasts

Self · (1 episode)

Kim Possible

Robot Pilot (voice) · (1 episode)

NBC 75th Anniversary Special

Self

Scrubs

Dr. Douglas · (1 episode)

The King of Queens

Phillip Waldscott · (1 episode)

The Lottery

Reverend Hutchinson

Maybe This Time

George Feeny · (1 episode)

Magic Kid II

Manny

The American Revolution

John Adams · (6 episodes)

Touched by an Angel

Whit Russell · (1 episode)

Touched by an Angel

George · (1 episode)

Boy Meets World

George Feeny · (158 episodes)

Back to the Streets of San Francisco

Julius Burns

Clara

Detective Lieutenant Fine

On Thin Ice: The Tai Babilonia Story

John Nicks

The Simpsons

KITT (voice) · (2 episodes)

Making a Case for Murder

Slaney

Her Alibi

Sam

The Little Match Girl

Haywood Dutton

Blind Date

Harold Bedford

Night of 100 Stars II

Self

Laugh Busters

K.I.T.T. (voice)

St. Elsewhere

Mark Craig · (137 episodes)

Knight Rider: Knight of the Phoenix

KITT (voice)

Drop-Out Father

Draper Wright

Knight Rider

KITT (voice) · (84 episodes)

Faerie Tale Theatre

Narrator (voice) · (1 episode)

Rooster

Dr. DeVega

Rehearsal for Murder

Walter Lamb

Reds

Julius Gerber

The Million Dollar Face

Henry Burns

All Night Long

Richard H. Copleston

Conquest of the Earth

Norman

Freebie and the Bean

Walter Cruikshank · (9 episodes)

Damien: The Leper Priest

Bishop Koeckemann

The Blue Lagoon

Arthur Lestrange

City in Fear

Freeman Stribling

Galactica 1980

Norman Blore · (2 episodes)

Trapper John, M.D.

(1 episode)

Hart to Hart

(1 episode)

Sunburn

Crawford

Blind Ambition

G. Gordon Liddy · (4 episodes)

Bleacher Bums

The Rebels

John Adams

The Chinese Typewriter

C. Donald Devlin

Diff'rent Strokes

(1 episode)

Grandpa Goes to Washington

(1 episode)

Sergeant Matlovich vs. the U.S. Air Force

Father Veller

Big Bob Johnson and His Fantastic Speed Circus

Lawrence Stepwell III

The Bastard

Samuel Adams

The One and Only

Mr. Crawford

The Court-Martial of George Armstrong Custer

Major Marcus Reno

The Return of the Incredible Hulk

John Bonifant

The Incredible Hulk

Dr. John Bonifant · (1 episode)

Killer on Board

Marshall Snowden

Oh, God!

George Summers

Soap

Heinrich Himmel · (1 episode)

Black Sunday

Pugh

Quincy, M.E.

Paul Reardon · (2 episodes)

Quincy, M.E.

Dr. Charlie Volmer · (1 episode)

The Nancy Walker Show

Kenneth Kitteridge · (12 episodes)

Francis Gary Powers: The True Story of the U-2 Spy Incident

Bissell

The Adams Chronicles

John Quincy Adams · (13 episodes)

Barbary Coast

Harry Boyle · (1 episode)

One of Our Own

Dr. Moresby

Sarah T. - Portrait of a Teenage Alcoholic

Matt Hodges

Kolchak: The Night Stalker

Police Lt. Jack Matteo · (1 episode)

The Rockford Files

Thomas Caine · (1 episode)

The Rockford Files

Gary Bevins · (1 episode)

The Parallax View

Austin Tucker

A Case of Rape

Leonard Alexander

The Lie

Albert

Toma

(2 episodes)

Murdock's Gang

Roger Bates

1776

John Adams

McMillan & Wife

Commander Campbell · (1 episode)

Cannon

(1 episode)

McCloud

(2 episodes)

Marlowe

Mr. Cromwell

The Good Guys

(1 episode)

The Mod Squad

(1 episode)

The Graduate

Mr. Braddock

The President's Analyst

Wynn Quantrill

Judd for the Defense

(1 episode)

Two for the Road

Howard Manchester

Ironside

(1 episode)

Captain Nice

Carter Nash · (15 episodes)

T.H.E. Cat

Tony Webb · (1 episode)

A Thousand Clowns

Albert Amundsen

Ladybug Ladybug

Mr. Calkins

The Defenders

Malloy · (1 episode)

The Defenders

Mike Herman · (1 episode)

Naked City

Harry Culverin · (1 episode)

Tony Awards

Self - Performer · (1 episode)

Hallmark Hall of Fame

John Quincy Adams · (1 episode)

Hallmark Hall of Fame

(1 episode)